Trimmer.



A. s. wlLLSH'DEc'D.

I. Bf WILLSI EXECUTRILX'. y

v TRIMMER.

APPLICATION FAILED MMI. 9. l9l5.

Patented ont. 15,1918.

'.5 SHEETS-SHEET 3- M0. 6,; m Mm, 031 )ma VMHUI# :n Wines, or nnoom'mnn- MAssmemren'x:es;y MABEL BARTON mrmetmmx or SAIDAMHUR J, WILLS, mineEAsEn.

l all flelon, it may concern.'

ferial thebflank is first died'eut from a Sheet Qff'ilubbe compound and placed in al 'n'uld thedaii'ed shape and submitted te i ijielasui'e during .the vuleani'zng proeeaa. The iblank centaine a slight surplus of the. yemnlmuncl in `miler te insui'e the'flling of tfold; und the heat necessaryn for 'vul- A "extent that there la an overflmv of the r'pllvis'arpuurljthe edge whei-ethe top' and t Y ofthe lnnli'l'jonjl Alten: the; Villieai'lizl iii'iqjixeess has eeasedwth'ia Qverflmv is found tolle 'attached` tri' the luifel m" Other attie'le as "'dgue 'l Athe, height f the `cutters; to" the Ytable "in Casesrnll-euej'the bettem offthe article haS 1pi'eje'ctienswhich'raise it and the fin above th el: 0fthe table; In 'other Words, rin` a jV achlne Of thichara'cter tliee must he quite y n" u idea-ange of adjustment -f the bladesin relation to the table in orden to 'Seoul-'e the iroyeujeutain 'nlliirnmersnf which the n' leakingY rubber heels Vofthe usual une' "fftlielleed table to theeutters'andv to WILLs i u l Mmmm Sppcication 'of Letters Patent. y Pateintel 06kt. .155 1918.

'Appncun' meu mmh 9,'1915. `serian No. 13,106.

to' me, the machine shownbeingespecially` adapted for trimming heels. w l' Figure l'is'aplan andl w w Fig. 2 is a front elevation of s nh `a Inachine." .l f' l l l Fig. 3 is an end elevation and f Figs. 4 and 5 are sections en lines and 5--5 of Fig. 1. i

A is the baeefA mi table uponA whihthe. various parts are mounted. A fixed ShaftB 'leld'bY "set seieii's b' in uprights `B1 mount#` ed onA the table Aand free,V to turn ,onjthis Shaft is a triple pulley C, this pulley being kept from endWiSe movement Vbetweenv cl'-A lals' c which a'l'e'attaehed tothe .shaft by serews 01. The center groove. of. the pulley C is provided with a belt (not rshowll b y which pqwei is applied m run the calttersy 1n'0unt'e, 'l 0n the, eilrlsxifisliafts Diand E, re-l spectively.' These shafts QD and are mounted in lawingng frames. `,'lhe frame earl-ying the shaft Deemprises arms D?, and eressbals D2. The trame carrying theshaft Eis similar` in eharaetel' having arms E1 lo,` cated helen the, eroSshalS DH' Flach" of these frames nu-uufed tu suing Non. th'e shaft B.-

(lu the shaft l) is` mounted' a .pulley d? NITEU STATES PATET OFFICE.

'1o The cutter-e `ae lettered clA and e and are shaft lll there is also a' pulle)Y 'r1.1 around u'hieh and tlil'vgreoveelim theytriule ley' (l1-una -the belt. e soythat -pouen am tothe pulley C vwill cause theretatqnfe'f terad and (f.in\epostegl diections. "frames carryingtliersliaftsl l) and 'Ireadjustable with I rel a tin tdY each 0th er Solas fte.` adjust the cutting ,edges .of Chef ('futtexgs` with relation t0 eachother: Thesefcllttels les per,jeuttei'f-being 4preferably the' une nearer the. work, and it is desi-rablethattlie amount:

of oyerlap n iay bevregulated.' Fer-this pur'- -pose I provide two 1bars,ene d* connecting the ezxfossbars D2 and the othen e, connecting '.1 j.;

65 i running:in thewaysh. It will .bars f f1 passes a right and left handed screw '(see Fig. 4), turning which tlli'e frames carrying the s afts D' and E are caused to approach or are moved away from each other according tothe'adjustment desired, the crossbars f, fl remaining ,in par- 'allel relation during. this adjustment.

The machine so far described includes the rotary mechanism whereby the c utters are gi'veua proper rotationlfor cuttin purposes andthe 'adjusting 4niecl'iansm w ereby the overlap of the cutters isrovided' for. To adjust the engagement -o the faces of vthe 'cutters,thatis to say, tol adjust the longitusdinal position zof the vshafts carrying them so4 that the faces of the-cutters will be alwa s in contact, I preferably .provide an uprig t G having'a slot g whlch is curved, its curve being concentric with the shaft B. The cutters when in action are inclined to Separate from each other,.theu per or outer cutter tending'to move outwar and the under or inner'cutter'tendingfto move inward.v To keep'them in proper relation and at the same time -to adjust their relative position I rovide the shaft D 'at its outer end outs'i e of the slotted upright G with a washer d andrnut al which screws onto the thread *end Of Vthe shaft D; which end is reduced somewhat-indiam'eter so thatit may readily p'ss through the groove g in the upright G. The locationof 4this nut and washer prevents the cutter d from moving outwardly' or s eparating from-'the other' cutters. The Shaft E'atfits outer end. is Vals/0 reduced somewhat in diameter where it passes through theslot g and it is provided-*with awashere5 and nut :Q ,this washer and-nut, however, being on the opposite or inner side-of theupright 40' G 'so that'the cutter' e is prevented from moving rearwardly and-*so separating' from the'c'utter d.' The uprighltinay be omitted, in vwhich-case the nutsjsind washers d, d "and e2 e .may bear 4one of' thje' "arms ilhe' frames' 'carryi-n" .thev-shafts l) and E 'ma'yjbe adjusted .together about-.th shaft B in 'orderift'ol 'raise -l'ower the-cutting edges y ffthe cut-ters'fdand. e with relation to the 5 0 `workf'tabl-e.- For this' prposeI provide two adjustments-"one fa permanent adjustment,

which I 'willlnow'describe, and the ther a temporary adiusjt'ment to housed during the rocess ofthe work, which will be' .described gelowin connection with the work table. Y Forithepurposes of the-permanent ad'ust- -nentzone lof ,-the arms E1 carrying the aft E -i s provided with 'u .lug e" through which tali e; A. The free ven of said spring rests` upon n sliding .vs;fec' lge..piece-HI this piece heseen'that .diameter is reduced,

bly turning thisscrew H in either direction t e cutter supports or frames will be raised or lowered'ae occasion mey'requre.'

The work support J is mounted to swing in uprghts j carried by the frame J1. The work. support may b e used either in horn The frame J1 is adjustable on the table' A being slotted as at j* at various points and' throu h these slots'bolts j2 having lWashers j' 4un er their heads pass into the table A So as to clamp the frame thereto. I prefer this constructlon because it enables the work support to be adjusted as to its position and also 4enables it to be entirel 'removed in case it is desired to' change t e cuttersi In front of the cutters the table ispreferably 'thinned as at j. In order that the work support J may have but a limited swing I attach to its under side an aim'il"i and provide .the frame J? on which it is mounted lwith -stops J, the arm' J being sufficiently. long to engage either one of these stops as the table is swung.

To the under side of the work support JV a handle K pivoted to slide in 'a strap 7c. This handle K is' connected by a connecting rod K1 with an arm' K? n`1ol'1nted on the' of the shaft Ka journaled in one of theluprightsB1 and-also in an upright- K mounts ed on'the table. To this shaftKs is 'attached by a c1 the wedgepiece. H2, this' attach'- I'nent being adj ust-able for convenience; The joint between the handle K and the c'onn'ecfu ing rod Kl is preferably a universal joint as at k2 so as to allow 'the connecting ro'd K1` to be. operated byjtlie'lmmlle K, whatever thc position 'of the table may be.

In practice, the position of the 'cutters with relation to each othelis first adjusted' by means of the Screw F. The overlap of the cutters may be great or small 'according to the work to be done.' Moreover, this adj x-istment is necessary becauseas the cutters have. to be .ground'f-roni timev to vtime. their.

`zontal or angular position.

The next step is the adj ustment'of' the cut 'ting edges of the cutters, that isal ofthe shears as a whole,. to thelevelof the 'work support, and this is accomplished by in'le'n's 1,15 of the screw H. These preliminaries having# been attended to, 'the Work is 'plwedujon the work support and the work Support eld the proper angle and the inachine'lfhlw fz been started u", the overlap or is' from the .heel if a heel ls to .be trimm )1,

the heel eingfturned byLtlieopera to present .the varioi'ls--portions .of its e' 1,281,461 i I v "3T v"presenting the rounded edge of the heel to the lcutters that the cutting edges of the cut- 'fte'rstshal'l 'beffraised slightly for a moment For this purpose the handle K isi'novcd to thefright (see Fig. 1) thus driving the,

viiifedgeH2 underneath the spring T11 `and `thus through lthe instrun'ientality of the screw H lifting both cutters and `their i frames bodily to a point on a level with the, overflow so that the overflow from the hack of the licei` .may be trimmed oli' evenly and 'f roperly. When this part of the heel has geen 'triinnled and the side edge of the heel ris again reached? the handle is pulled to the `lefttthlus returning the cutters to their nori mal position.

Thus it Will `be seen that provision is made by my invention for a licei trin'imer in which the cutters havingl an adjustment with relation to each other and the cutting mechme t with relation to the work support and `also the capability of a temporary adjust-` i [article @a "ings an'xachine` is shown which is "adapted for trimming heels although it may i port turns.

arise *during the cutting of an individual The `end thrust on the cutters 1s "also provided for.` It is also evidentrthatx these adjustn'i'ents `may be. made in various Ways, for` which reasoniil do not mean to f limit myself to the preclse form of adjusti`i'ientsshowl1'as other means of accomplish- 'mg the desired results will occur to those 'skilled'in the art. Moreover, in the drawb e used fortrimming other similaiarticles. By.; slight changes 1n design as wel] as changes 1n dimeiisions the principles of the machine may he embodied to do other like y work. For` exampleI` two of these. machines1 properly proportioiyied, n'iounted opposite each other, may he iisedffor trimming simultaneousljF the opposite edges of a piece oil mattine. When ciiittii'ifr some rubber conipounds the cutters and Work should be kept wet as will 'be understood by those skilled in the art.

The shape and mounting of the work support i'nay be varied according to the requirements of the Work. Other forms lot' work support are Well known in the art and may `be substituted for/that. shown although the work support shown is the best for most purposes in rubber work. The edge of tho work support nearest the cutters should be in line with the axis ou which the `wordt sup- In practice I prefer that the Wortksupport should be capable of vertical adjustment and for this purpose lI have shown the uprights y' as th rcaded andeach i."s"provided with a mit j on which rests a ber ring block as a' Whole, have a permanent adj ust-` pecia lly` heilig located ahorlthe otheriwo coperating 'rotary cutters. each mounted to rotate in one oli said frames, means for rotating them. 'and means whereby saidirames are adjusted with relation to each other whereby the relation ot' the edges of said cutters maiv be adjusted. f

52. A machine oi"l the kind described comprisingan axis and means for sulniortingl il, two Jtrames mounted to roi-k onsaid axis, two (vooperating. overlapping rotani' yciittiu-'i each rotatal'ily mounted on one of said, framesv` u laus wherel'iy they are rotated, and means wl'ierelrr the amount oliin'i'rhijp of said cutters may heiadjusiial toy adjust the. ['iositions oi' their enti ing edges with relation to each other.

2. A machine ot' the kind desrrilwd comprising an axis and means for supporting it, two frames mounted `to rock on saidraxis, two i'ai'a'ilierrating. overlapping rotary cutters `each rotatably mininted onA one of,A said frames, means whereby they arc rotated.A means u'herehiv the amount of overlap of said cutters mayA he adjusted-.to adji sl', the

'positions ot' their cutting,r edges with relation to each other, said means conn'n'isingka screw pi'issing throughboth olE said i'ranief-i and opposite to that carrying the ruiter. and,

nuts mounted on said shafts and in engagement with said support.y the nut on the shafty carrying the outside. cutter hearing on the outside ol' said support and the nut on the other sha'll hearing on .the inside of the sup' port wherelr'v the screwing ol' either of sind nuls in the (,lirection o'l' the support will cause the apl'n'i'ii'ich ol' the said cutters.

o'. A inarliinc ol' 'the hind described coni prising a supiiort` an axle mounted therein, two .trames ininintcd to roi-k on said axle,

l"'twolshaftseach mounted parallel t`o said lllil "llo axle in one of said frames, cutters mounted on adjacent ends ofrach shaft, said cutters. overlapping each other, and means for holding said cutters in overlapping engagement"` comprising a slotted stationary member,

Said shafts iassing through the slot in said member, an nuts mounted one on the end of each shaft, he nut on the shaft carrying 'the outside cutter bearing against the outside of the stationary member whereby it may adjust the outside cutter against the inside cutter and the nut on the shaf cari-"ing the ins side cutterbearing gainst t e inside of the stationary member, 'whereby it mayvadjust the inside cutter against the outside member.

6. A machine of the kind'describd coniprisi-ng a fixed s `aft, vwo frames mounted to rock together thereon, a rotary shaft mounted in each frame, a cutter mounted on one' end of each rotary shaft, said cutters overlapping to engage the work at the same point, an adjustable work support adjacent to said cutters, and means to adjust the relation of said cutters to each other, and means to adjust the cutters with relation to the work support.

7. A machine of the kinddescribed comprising a fixed shaft, two frames mounted to rocktogether thereon, a rotary shaft mounted in each frame, a cutter mounted on one end of eachrotary shaft, said cutters overlapping to engage the work at the same point, a. work support adjacent to said cutters, and means to adjustI the height of said cutters with relation to said work support,

said means comprising a screw passing,

through said frame and means to engage the lower "end of said screw whereby the turning o f said screw will raise or lower said frames about said stationary shaft.

8. A machine of the kind described comprising a fixed shaft, two' frames mounted to roclc together thereoin; .rotary shaft mounted in each frame, a cutter mounted ou one end of each rotary shaft, said cutters overlapping to engage the work at the same point, a work support adjacent to said cutters, and means to adjust the height of said cutters with relation to said work support, said means comprising a screw passing through said frame and n'icaiis to engage the lower end of said screw whereby the turning of saidscrew will raise or lower said frames about said stationary shaft, said last-named means comprising a Wedge and means for.

moving it to wdjust the-height of the point l of its engagement with said screw.

9. A machine of the kind described oomi prising a fixed shaft, two frames mounted to rocl: together thereon, a rotary shaft,

mounted in each frame, a cutter mounted" raise and lower said support comprising aj handle lever pivoted on said Work support and connections between said handle leven :uid said wedge.

10.` In a machine of the kind described, in

' combination with a cutting mechanism, a

work support and means for supporting it comprising threaded u rights, a nut on each upright, a block resting on said nut, the upper' end of each upright being slotted and the work support being provided with axles resting in said slots and on said blocks.

11. In a machine of the kind described, a base, an axle mounted thereon,` rocking frames mounted on. said axle, means for adjusting the angle of saidrocking frames to each other, shafts mounted on said frames, a cutter mounted on each shaft, means for rotating said cutters, a Work support one edge of which` is, in close proximity to said cutters, and means for adjusting the height of the cutters with relation to the adjacent edge of said work support.

ARTHUR 'J. WILLS.

A Witnesses: I

Gnome O. G. CoALE, M. E, Fmunm.

to said cutters, and i 

